ISO/IEC 18031:2025Published

Information technology — Security techniques — Random bit generation

Technologies de l'information — Techniques de sécurité — Génération de bits aléatoires

Abstract / scope

This document specifies a conceptual model for a random bit generator for cryptographic purposes, together with the elements of this model.

This document specifies the characteristics of the main elements required for both non-deterministic and deterministic random bit generators. It also establishes the security requirements for both non-deterministic and deterministic random bit generators.

Techniques for statistical testing of random bit generators for the purposes of independent verification or validation and detailed designs for such generators are outside the scope of this document.

Life cycle

Replaces

ISO/IEC 18031:2011WithdrawnInformation technology — Security techniques — Random bit generationInternational Standard · Published 8 Nov 2011 · ISO/IEC JTC 1/SC 27ISO/IEC 18031:2011/Cor 1:2014WithdrawnInformation technology — Security techniques — Random bit generation — Technical Corrigendum 1International Standard · Published 19 Sep 2014 · ISO/IEC JTC 1/SC 27ISO/IEC 18031:2011/Amd 1:2017WithdrawnInformation technology — Security techniques — Random bit generation — Amendment 1: Deterministic random bit generationInternational Standard · Published 6 Mar 2017 · ISO/IEC JTC 1/SC 27